Earbud



FIG. 1 is a perspective view of an earbud showing my new design;

FIG. 2 is a perspective view viewed from another angle thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines depict portions of the earbud in which the design is embodied that form no part of the claimed design. 

CLAIM The ornamental design for an earbud, as shown and described. 